scientific journal
  • ISSN 2072-8158
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  • Урал-Пресс: 012688

Journal «Water: chemistry and ecology» № 8 (38) за August 2011 г.</H3>

Journal «Water: chemistry and ecology»

№ 8 (38) за August 2011 г.

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p. 78-84 /

Kakhramanova Kh.T.

Complex formation adsorbtion on natural zeolite

Adsorption of toxic potassium hexacyanoferrate (III) on natural clinoptilolite modified by various cations has been investigated. Ag-clinoptilolite was shown to be more active than potassium hexacyanoferrate. Physico-chemical studies have shown that the adsorption of potassium hexacyanoferrate on Ag-clinoptilolite is accompanied by the formation of potassium and silver hexacyanoferrate (II) complexes, which are attached to the zeolite surface. Solution interaction’ aniline – hexacyanoferrate – Ag clinoptilolite’ being absent , the sorbent has aniline adsorption capacity.

Keywords: adsorbtion, clinoptilolite, cyanides, zeolite

p. 85-88 /

Samoylova N.A.

Acid functional group determination on carbon sorbent surface by potentiometer method

Number of oxygen-containing functional groups of industrial carbon surface has been measured by potentiometric titration. It was shown that the number of groups depends not only on the type of raw material, but also on the specific surface area of analyzed industrial samples.

Keywords: acid functional groups, activated carbon

p. 89-94 /

Velikanov N.L.
Naumov V.A.
Velikanova M.N.

Pollution distribution in Tovarnaya river

The two-dimensional model of contamination distribution has been observed. This model has been applied for the Tovarnaya river - the typical small river of Kaliningrad city. Dimensionless impurity concentration profiles in the presence of one and two pollution sources have been made. Impurity index cross profiles of sewage waters have been presented. Acceptable intermix level is reached on the distance of 120m from source of pollution.

Keywords: contaminants, pollution distribution, sewage sample analysis, small river

p. 95-98 /

Eremeyshvily A.V.
Figaro A.L.

Heavy metal content in drinking water in pre-school educational institutions

Zinc, copper, lead and cadmium content were measured in drinking water samples, which were collected in kindergartens from Yaroslavl city in Yaroslavl region. A tendency of zinc and copper increasing during summer season has been outlined. Annual and seasonal average concentrations of investigated heavy metals in drinking water were less than MPC for these metals.

Keywords: drinking water, heavy metals, maximum permissible concentration (MPC)

p. 3-8 /

Galiulin R.V.
Galiulina R.A.

Chemical substance rationing in bottom sediments of water ecosystems

The analysis, systematization and generalization of information concerning rationing of chemical substances (pesticides, industrial ingredients) in bottom sediments of water ecosystems polluted by different ways have been carried out. There has been made a conclusion on the basis of geochemical and biogeochemical criteria of rationing with determination of maximum permissible concentrations of substances in bottom sediments.

Keywords: bottom sediments, chemical substances, geochemical and biogeochemical criteria, maximum permissible concentration, rationing, water ecosystems

p. 99-102 /

Butovsky M.E.

Locomotive facility wastewaters: post-treatment by ozonation

Combined scheme of locomotive facility wastewater purification has been presented. Wastewater pre-treatment consists of oil adsorption, post treatment stage applies ozonation by ozone-air mixture, this leads to wanted residual concentration of petroleum products.

Keywords: adsorption, industrial wastewaters, oil, ozone-air mixture

p. 9-15 /

Poddubniy S.A.
Podgorniy K.A.
Tsvetkov I.A.

Mathematical modeling for hydrodynamic regime analysis of various water ecosystems

Possibility of scheduled hydrodynamic model application for flow structure analysis has been discussed. River mouth area, water basin stretch including shallow water areas and whole water reservoir have been investigated. Forming peculiarities and space-time variation of water circulation have been revealed.

Keywords: current, ecosystem, formation, modeling, regime

p. 16-21 /

Bayborodin A.M.
Vorontsov K.B.
Bogdanovich N.I.

Local treatment of heavily polluted sewage waters of pulp and paper industry

The efficiency of local sewage purification after wet debarking of wood by coagulation applied in paper industry has been analyzed. Data on pH effect, coagulant and flocculant dosages have been presented. Technology of local sewage treatment based on experimental data has been developed.

Keywords: coagulation, pulp and paper industry, sewage

p. 22-27 /

Grigorieva N.V.
Terekhova S.V.

Ammonium and thiocyanate removal from highly mineralized steel plant runoff

Thiocyanate removing is implemented by bacteria aboriginal communities in a reactor of complete mixing on the first stage of wastewater treatment. On the second stage when activated sludge having been adapted its adsorption capacity for ammonium removal from highly mineralized runoff has been shown. Adapted activated sludge community was resistant to 0,5 M Na+. Under this conditions nitrification took place with second phase partial inhibition, nitrite being accumulated in the environment.

Keywords: adapted bacterial community, industrial waste, nitrification

p. 28-35 /

Voinceva I.I.

Polyhexamethyleneguanidine hydrochloride as reagent-oxidizers alternative for water purification and disinfection. Part 2.

Polyhexamethyleneguanidine hydrochloride properties have been characterized. This polymeric biocidal substance with broad spectrum of operation is currently used in many disinfectant agents (more than 60). Possibility of using polyhexamethyleneguanidine hydrochloride as biocidal flocculant for effective and safe water disinfection has been shown. Positive experience of the Ukrainian coworkers on polyhexamethyleneguanidine hydrochloride usage as nonoxidizing reagent for water disinfection has been declared.

Keywords: alternative approach to water disinfection, drinking water, polyhexamethyleneguanidine hydrochloride

p. 42-47 /

Poleva A.O.
Shkundina F.B.

Microphytobenthos data for monitoring of Pavlovskoe water reservoir

Pavlovskoe water reservoir of mountain type was built on the Ufa river which belongs to the Volga river basin. 76 species and intraspecific taxa from 48 genera, 26 families, 20 orders, 8 classes and 4 divisions had been determined by the authors during their investigation of the microphytobenthos of the Pavlovskoe reservoir. Changes in the degree of cells viability microphytobenthos depending on hydrochemical and hydrobiological conditions of the reservoir have been detected.

Keywords: microphytobenthos, saprobity, viability degree

p. 48-54 /

Budykina T.A.
Gandurina L.V.

Aluminum-containing coagulants for suspended and dissolved contaminant removing from water. Part 2. Removing of anionic organic impurities

Application of aluminum-containing coagulants for sodium humate and acid green dye removing from water has been investigated. There is no correlation between aluminum oxychloride basicity its dose and the efficiency of water purification.

Keywords: acid dye, coagulants, sodium humate, water treatment

p. 55-60 /

Svarovskaya L. I.
Altunina L.K.

Oil water purification by biological products

Biopreparation for water purification based on oil oxidizing microorganisms immobilized on solid substrate carrier has been developed. Alumina silicate microspheres (spherical ash) were used as substrate carrier, its density being 2.5 times less than density of water. Biological product destruct a wide range of hydrocarbons (linear, cyclic, aromatic). The product is designed for water surface purification and waste water treatment.

Keywords: biodegradation, biopreparation, Oil pollution, oil-oxidizing microorganisms, spherical ash

p. 61-65 /

Melnikov I.O.
Tripolskaya T.A.
Rodionova S.A.
Artemov A.V.

Earth metal peroxides for water disinfection and surface water hydrochemical characteristic improvement

Solid earth metal peroxides (calcium peroxide was taken as an example) have been shown to be perspective as water disinfectants. Calcium peroxide application lead to significant improvement of hydrochemical characteristics of surface waters, the latter is of a big importance for fishing industry.

Keywords: calcium peroxide, dissolved oxygen, hydrogen peroxide, water disinfection

p. 66-71 /

Zakharova M.E.

Qualitative assessment of anthropogenic load on hydrological systems

Some theoretical aspects of anthropogenic load have been described in the paper. Methods for qualitative assessment of economic activity loads on water subjects have been presented, these allows to reveal the most important anthropogenic factors, and to estimate their impact on hydrological systems for every administrative object.

Keywords: anthropogenic load, qualitative assessment, water subject

p. 72-77 /

Trukhanova E.V.
Vozhdaeva M.Yu.
Kantor L.I.
Melnitsky I.A.

Haloacetic acid detection by gas chromatography in drinking water

Haloacetic acids are the main water chlorination by-products. The process of their detection in drinking water is relevant in regions where surface waters are very rich in natural humic substances - haloacetic acid precursors. Methods of gas chromatographic detection of such asids in drinking water including ones developed and certified in Russia have been discussed.

Keywords: drinking water, gas chromatography, haloacetic acids, investigation methods, water chlorination by-products